/*
 * Copyright (c) 2021, MegaEase
 * All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.megaease.easeagent.plugin.api;

import java.lang.reflect.Field;
import java.util.Map;

public class MockSystemEnv {
    private static final Map<String, String> SETTER = getEnvironments();


    @SuppressWarnings("all")
    private static Map<String, String> getEnvironments() {
        try {
            Class systemEnv = Thread.currentThread().getContextClassLoader().loadClass("com.megaease.easeagent.plugin.utils.SystemEnv");
            Field environments = systemEnv.getDeclaredField("ENVIRONMENTS");
            environments.setAccessible(true);
            return (Map<String, String>) environments.get(null);
        } catch (ClassNotFoundException | NoSuchFieldException | IllegalAccessException e) {
            e.printStackTrace();
        }
        return null;
    }

    public static void set(String name, String value) {
        if (SETTER != null) {
            SETTER.put(name, value);
        }
    }

    public static void remove(String name) {
        if (SETTER != null) {
            SETTER.remove(name);
        }
    }
}
